Malicious Code Injection in mahnud-unagyu-goi: A Threat to npm Packages
Summary
MAL-2025-159123: Malicious code in mahnud-unagyu-goi (npm). Affected versions are not published. No fix is published. How to fix ↓
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Background
mahnud-unagyu-goi is an npm package that has been identified as part of a malicious campaign targeting the npm registry. This package is associated with the tea.xyz token reward initiative, which aims to inflate developer reputation scores through the automatic generation and publication of derivative packages. The malicious nature of this package lies in its ability to modify its own metadata and republish itself under various names, potentially leading to widespread pollution of the npm ecosystem.
Vulnerability Detail
The vulnerability in mahnud-unagyu-goi stems from its malicious payload, which alters the package.json file to remove private flags, changes version numbers, and generates random package names. This behavior is designed to automate the creation and publication of numerous variants of the package, thereby compromising the integrity of the npm registry. The origin of this vulnerability is linked to the tea.xyz token reward campaign, which employs such tactics to manipulate developer reputation metrics. The ramifications include the potential for developers to unknowingly install compromised packages, leading to security risks in their applications.
How To Fix
This package is malicious. Remove it and rotate any credentials it could have accessed.
npm uninstall mahnud-unagyu-goiIf it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.
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Workaround
As a temporary workaround, avoid using the mahnud-unagyu-goi package and consider using alternative packages that provide similar functionality without the associated risks. Always verify the integrity of packages before installation.
Conclusion
The mahnud-unagyu-goi package poses a significant threat due to its malicious behavior of modifying package metadata and republishing itself. It is essential for developers to be vigilant and remove any instances of this package from their projects. Utilizing tools like Vulert can help in monitoring and identifying vulnerabilities in open-source packages.
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FAQ
mahnud-unagyu-goi is an npm package that has been identified as part of a malicious campaign aimed at inflating developer reputation scores through the automatic generation of derivative packages.
The vulnerability can lead to the installation of compromised packages, which may introduce security risks and affect the stability of your application.
If you have installed mahnud-unagyu-goi, you should uninstall it immediately using the command: npm uninstall mahnud-unagyu-goi.
You can use tools like Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software by analyzing your package-lock.json file.
Yes, you can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
